<?php
class HTMLPurifier_LengthTest extends HTMLPurifier_Harness {
	public function testConstruct() {
		$l = new HTMLPurifier_Length ( '23', 'in' );
		$this->assertIdentical ( $l->getN (), '23' );
		$this->assertIdentical ( $l->getUnit (), 'in' );
	}
	public function testMake() {
		$l = HTMLPurifier_Length::make ( '+23.4in' );
		$this->assertIdentical ( $l->getN (), '+23.4' );
		$this->assertIdentical ( $l->getUnit (), 'in' );
	}
	public function testToString() {
		$l = new HTMLPurifier_Length ( '23', 'in' );
		$this->assertIdentical ( $l->toString (), '23in' );
	}
	protected function assertValidate($string, $expect = true) {
		if ($expect === true)
			$expect = $string;
		$l = HTMLPurifier_Length::make ( $string );
		$result = $l->isValid ();
		if ($result === false)
			$this->assertIdentical ( $expect, false );
		else
			$this->assertIdentical ( $l->toString (), $expect );
	}
	public function testValidate() {
		$this->assertValidate ( '0' );
		$this->assertValidate ( '+0', '0' );
		$this->assertValidate ( '-0', '0' );
		$this->assertValidate ( '0px' );
		$this->assertValidate ( '4.5px' );
		$this->assertValidate ( '-4.5px' );
		$this->assertValidate ( '3ex' );
		$this->assertValidate ( '3em' );
		$this->assertValidate ( '3in' );
		$this->assertValidate ( '3cm' );
		$this->assertValidate ( '3mm' );
		$this->assertValidate ( '3pt' );
		$this->assertValidate ( '3pc' );
		$this->assertValidate ( '3PX', '3px' );
		$this->assertValidate ( '3', false );
		$this->assertValidate ( '3miles', false );
	}
	
	/**
	 *
	 * @param $s1 First
	 *        	string to compare
	 * @param $s2 Second
	 *        	string to compare
	 * @param $expect 0
	 *        	for $s1 == $s2, 1 for $s1 > $s2 and -1 for $s1 < $s2
	 */
	protected function assertComparison($s1, $s2, $expect = 0) {
		$l1 = HTMLPurifier_Length::make ( $s1 );
		$l2 = HTMLPurifier_Length::make ( $s2 );
		$r1 = $l1->compareTo ( $l2 );
		$r2 = $l2->compareTo ( $l1 );
		$this->assertIdentical ( $r1 == 0 ? 0 : ($r1 > 0 ? 1 : - 1), $expect );
		$this->assertIdentical ( $r2 == 0 ? 0 : ($r2 > 0 ? 1 : - 1), - $expect );
	}
	public function testCompareTo() {
		$this->assertComparison ( '12in', '12in' );
		$this->assertComparison ( '12in', '12mm', 1 );
		$this->assertComparison ( '1px', '1mm', - 1 );
		$this->assertComparison ( str_repeat ( '2', 38 ) . 'in', '100px', 1 );
	}
}

// vim: et sw=4 sts=4